Three vectors a- -b- -c- are such that - a- -1- b- -2- c- -4 and a- -b- -c- -0- Then the value of a- -b- -3b- -c- -3c- -a- is equal to -

The correct option is A 26 c= #160; a b ∴ 4(a b #160; ) +3( b.c )+3( c. a) = 4( a. b)+3 b.( a b)+ 3(a.( a b #160; =4( a. b # ...

You visited us 4 times! Enjoying our articles? Unlock Full Access!

Applications of Dot Product

Three vectors...

Question

Three vectors $\to a, \to b, \to c$ are such that $| \to a | = 1, ∣ ∣ \to b ∣ ∣ = 2, | \to c | = 4$ and $\to a + \to b + \to c = \to 0$ . Then the value of $\to a . \to b + 3 \to b . \to c + 3 \to c . \to a$ is equal to :

- 68

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 26

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

- 34

No worries! We‘ve got your back. Try BYJU‘S free classes today!

27

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

Suggest Corrections

Similar questions

\to a, \to b, \to c

\to a + \to b + \to c = \to 0

(\to a, \to b) = \frac{π}{3}

| \to a \times \to b | + | \to b \times \to c | + | \to c \times \to a | =

\to a, \to b, \to c

\to a + \to b + \to c = \to 0

(\to a, \to b) = \frac{π}{3}

∣ ∣ \to a \times \to b ∣ ∣ + ∣ ∣ \to b \times \to c ∣ ∣ + | \to c \times \to a | =

(\to a \times \to b) \times \to c = \to a \times (\to b \times \to c)

\to a, \to b

\to c

\to a . \to b \neq 0, \to b . \to c \neq 0

\to a

\to c

\to a, \to b, \to c

\to a . \to b = \to a . \to c, \to a \times \to b = \to a \times \to c, \to a \neq 0

\to b = \to c

\to a, \to b, \to c

\to a \times \to b = \to c, \to b \times \to c = \to a, \to c \times \to a = \to b

| \to a | = | \to b | = | \to c |

Join BYJU'S Learning Program